Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5115081 | Process for producing copolycarbonate oligomer from dichloroformate | — | 1992-05-19 |
| 4939231 | Process for producing fatty acid-terminated polycarbonate resin | Toshiaki Takata, Satoshi Kanayama | 1990-07-03 |
| 4888401 | Molding material for optics | Takao Kawaki, Yasuhiko Kijima, Yuh Miyauchi, Eizi Ukita, Toru Nakajima | 1989-12-19 |
| 4695620 | Copolycarbonate resin from branched chain alkylene bis phenol | Shigeo Yanada, Tadami Kinugawa | 1987-09-22 |
| 4631334 | Optical articles of branched polycarbonate resin | Shigeo Yanada, Toshiaki Izumida, Kazuyuki Akahori | 1986-12-23 |